Here’s some of what I wrote on the topic for today’s U.K.-based Telegraph.

…the United States has the highest corporate tax rate in the developed world (and the highest in the entire world, according to KPMG, if you ignore the United Arab Emirates’ severance tax on oil companies). …The central government in Washington imposes a 35pc rate on corporate income, with most states then adding their own levies, with the net result being an average corporate rate of 39.1pc. This compares with 37pc in Japan, which has the dubious honour of being in second place, according to the tax database of the Organisation for Economic Co-operation and Development (OECD). …if you broaden the analysis, it becomes even more evident that the United States has fallen behind in the global shift to more competitive corporate tax systems. The average corporate tax for OECD nations has dropped to 24.8pc. For EU nations, the average corporate tax is even lower, with a rate of less than 22pc. And don’t forget the Asian Tiger economies, with Singapore, Taiwan and Hong Kong all clustered around 17pc, as well as the fiscal paradises that don’t impose any corporate income tax, such as Bermuda and the Cayman Islands.

And I warn why making “inversions” illegal is a misguided and self-defeating response.

Blocking inversions…is like breaking the thermometer because you don’t like the temperature. It simply masks the underlying problem. In the long run, the United States will lose jobs and investment because of bad corporate tax policy, regardless of whether companies have the right to invert.

In other words, America desperately needs a lower corporate tax rate.

The crowd in Washington, however, says American can’t “afford” a lower corporate tax rate. The amount of foregone revenue would be too large, they claim.

The Tax Foundation augmented the chart with some important commentary on why companies are attracted to Canada.

Part of the attraction is the substantial tax reforms that occurred over the last 15 years in Canada. First among these is the dramatic reduction in the corporate tax rate, from 43 percent in 2000 to 26 percent today.

What about tax revenue?

The U.S. currently has a corporate tax rate of 39 percent, but lawmakers are reluctant to do what Canada did, i.e. lower the tax rate, for fear of losing tax revenue. …According to OECD data, corporate tax revenue increased following Canada’s corporate tax rate cuts that began in 2000. …Corporate tax revenue as a share of GDP in Canada has averaged 3.3 percent since 2000, while it averaged 2.9 percent over the years 1988 to 2000, when Canada’s corporate tax rate was 43 percent.

My colleague Chris Edwards also reviewed this issue (and he’s a former Canadian, so pay close attention).

Here’s his chart showing the corporate tax rates imposed at the national level by both the U.S. government and the Canadian government.

As you can see, the rates were somewhat similar between 1985 and 2000, with the Canadians having a slight advantage. But then Canada opened up a big lead over America by dropping the central government tax rate on corporations to 15 percent.

So what happened to corporate tax revenue?

As you can see from his second chart, receipts are very volatile based on economic performance. But the Canadian government is collecting more revenue, measured as a share of total economic output, than the American government.

In spite of having a lower tax rate. Or perhaps it would be more accurate to say the Canadians are generating more corporate tax revenue because of the lower tax rate.

In other words, the Laffer Curve is alive and well.

Not that we should be surprised. Scholars at the American Enterprise Institute estimate that the revenue-maximizing corporate tax rate is about 25 percent, far below the 39.1 percent rate imposed on companies in the United States.